I have a 5970 as my main card on top pcie 16x slot. My gts 250 in second 16x slot. Both slots are full 16x. Physx is working fine. Problem is when I put system in sleep or shutdown when I bring it back up either in sleep, restart or cold boot it does the displays on nvidia card. This is even when I do not have a display hooked up at all and just have a dvi in the card and hooked up to no display. (hidden display) or using the vga mode.

Is there a way to tell system which card should be used as main?If I switch cards in pcie slots should that work?

I have a asus p6x58d premium mobo, 920 cpu, 5970,gts250 gpu.

Just trying to get system setup so that when I reboot or come out of sleep it recognizes my ati card because it doesn't see them at all. I then have to rearange everything. Once done it all works fine till i reboot or put it in sleep.Is it as easy as changing cards around in the pcie slots.

I am using the 10.3 ati drivers and the 257 driver that lets you use physx without mods.Sorry for the long post and thanks for the reply!

Switching the cards in the pcie slots does not help. I am pulling my hair out! I have spent 8-9 hrs researching this on the internet. I can't be the only one having this issue.

I can get physx to work on the gts 250 and use my 5970 for the graphics but the issue is that when I reboot or even go to sleep mode the pc loses the ati display and defaults to nvidia. I do not even have a nvidia display hooked up! So then I have no picture. I know there are alot of people on the forum using ati/nvidia hybrid.

Are you guys getting the display to stay on ati? Was there a fix you needed to do? I am on the 257 nvidia drivers that enable physx. Are you guys on the mod?I have not used the mod yet as I got the gts 250 4 days ago and all i have tried is the 257 drivers.

I am really looking for help here guys as I have been up till 2-3 am the last 3 days trying to get this to work!